When did the conference the members of the Fresno State–San Diego State rivalry are both part of begin operations?
July 1999
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Section::::Abstract.
Fresno State–San Diego State football rivalry
38748512
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Section::::Abstract.
Fresno State–San Diego State football rivalry
38748512
-1
Section::::Abstract.
Mountain West Conference
78443
-1
Section::::Abstract.
Mountain West Conference
78443